查询词典 liquid nitrogen

Liquid nitrogen is air that is so cold that it is in liquid form (-321oF).

液体氮是很寒冷的空气，因而它以液体的形式。

For example, one volume of liquid nitrogen at atmospheric pressure vaporize s to 694 volumes of nitrogen gas at 68 F (20 C).

例如，一个大气压下的单位体积的液态氮在68°F(20°C)时蒸发成694个单位体积的氮气。

The simulative supercritical helium system designed for testing of CICCsub cable and joint is composed of high pressure He gas tank,pressure regulator,mass flow controller,liquid nitrogen precooler,counter flow heat exchanger,liquid helium bath cooling heat exchanger,etc.

为 CICC( cable- in- conduit conduct)子缆及子缆接头试验而设计的超临界氦迫流冷却系统由高压氦气钢瓶、汇流排、减压阀、流量控制阀、换热器等部件组成。

The present invention is characterized in that the ammonium metatungstate powders and the cobltic-nitrate powders are respectively dissolved in the water and scattered in the liquid nitrogen to be pre-frozen using a nitrogen spray gun after being mixed and defecated, and then are placed in a freezedryer to be dried vacuumly and finally the powders are obtained. The nanometer powder i.e. the nano tungsten-cobalt composite powder is obtained by reducing the freeze-dried mixed powder in the atmosphere of hydrogen.

该微晶硬质合金的制备方法特征为：将偏钨酸铵粉末与硝酸高钴粉末分别溶于水中，混合澄清后使用氮气喷枪，将其分散在液氮中预冻后置于冻干机中进行真空干燥得到粉末；在氢气气氛中对冻干的混合粉末进行还原得到纳米粉体，即钨钴纳米复合粉体。

For example, one volume of liquid nitrogen at atmospheric pressure vaporizes to 694 volumes of nitrogen gas at 68°F (20°C).

例如，一个大气压下的单位体积的液态氮在68°F(20°C)时蒸发成694个单位体积的氮气。

Then they were stocked by three preservation methods using slant culture, liquid paraffin and liquid nitrogen, respectively.

分离纯化了形态差异较大的21株座壳孢，用斜面低温、液体石蜡和液氮保存这三种方法对分离的菌株进行了保藏。

We have many experiences in cryogenic storage, receiving and send-out system and high-pressure storage, receiving and send-out system which apply to liquid oxygen, liquid nitrogen, ethylene, propylene, LPG, VCM, butadiene and molten Caprolactum etc. various kinds of petrochemical products.

我们的团队特别对，应用在高纯度液态气体、液态乙烯、液态丙烯、氯乙烯、液化气、丁二烯、液态己内醯胺等各种原料，所需之超低温(最低零下196℃)存贮系统，接收站及发货站系统，高压存贮系统，接收站及发货站系统，有着非常丰富之经验。

It undertakes fuel oil, polymer, paraffin wax and chemical fibre, with the main products of non-lead gasoline, light diesel fuel, 20# heavy diesel fuel, topped oil, naphtha, aviation kerosene, cracked diesel oil, fuel oil, base oil, isomer dewaxing oil, liquid petroleum gas, propane, propylene, MTBE, benzene, toluene, xylene, paraffin wax, polyacrylamide, acrylonitrile, ammonia sulfate, semi-refined asphalt, acrylon, furfural extract oil, liquid nitrogen, etc, totaling 338 varieties and more than 100 kinds of brands.

它的主要产品有：高标准清洁汽油、无铅汽油、轻柴油、重柴油、航空煤油、化工轻油(拔头油、裂化原料油、石脑油)、燃料油、&老三套&基础油、异构脱蜡基础油、液化石油气、丙烷、丙稀、MTBE、石蜡、聚丙稀酰胺、丙稀腈、硫胺、硫磺、三苯、半炼沥青、腈纶、糠醛抽出油、液氮等38种100多个牌号的石油化工产品，产品辐射全国25个省、市、自治区。2000年销售收入119.9亿元。

The freeze-dried carcasses were then homogenized with liquid nitrogen, and aliquots of dried rat homogenate were assayed for nitrogen and fat concentrations.

被冰冻乾燥的动物体先和液态氮均匀混合，再进行含氮量和脂肪含量检验。

With the liquid oxygen storage capacity of 1000m3 and 500m3 of liquid nitrogen storage capacity.

并具有1，000m3的液氧储存能力和500m3的液氮储存能力。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新